CAJ | 학술논문

针对微电阻测量比较困难等问题，设计了一种基于LabVIEW虚拟仪器的高精度直流微电阻测量仪。该测量仪采用四线测量方法，以单片机为主控制器，进行原始数据采集，控制继电器自动切换量程，可以准确地测量出微欧级别的电阻。测试结果表明，精度可以达到3‰，具有良好的应用前景。
침대미전조측량비교곤난등문제，설계료일충기우LabVIEW허의의기적고정도직류미전조측량의。해측량의채용사선측량방법，이단편궤위주공제기，진행원시수거채집，공제계전기자동절환량정，가이준학지측량출미구급별적전조。측시결과표명，정도가이체도3‰，구유량호적응용전경。
For micro resistance measurements are difficult problems, this paper design a high preci-sion DC micro - resistance measuring instrument based on LabVIEW virtual instrument. Four - wire measurement method, the measurement instrument is given priority to with single chip microcomputer controller, in the original data collection, control relay switch range, can accurately measure the level ofμΩ resistance. Test results show that the precision can reach 3‰, has a good application prospect.